Guys,
H.323/8.1.7.2 says
:
After establishment of a call using
the Fast Connect procedure, either endpoint may determine that it is necessary
to invoke call features that require the use of H.245 procedures. Either
endpoint may initiate the use of H.245 procedures at any point during the
call, using tunnelling as described in 8.2.1 (if h245Tunnelling remains enabled) or a separate H.245
connection. The process for switching to a separate H.245 connection is
described in 8.2.3.
8.2.3
says:
When
H.245 encapsulation or Fast Connect is being used, either endpoint may choose
to switch to using the separate H.245 connection at any
time.
There seem to be
some contradiction in there: is it "after establishment" or "at any
time"?
Do you have to wait
for after CONNECT to establish a separate H.245 channel or
not?
The case I'm
interested in would be to send SETUP with fastStart, then receive ALERTING with
fastStart. Then can either end initiate H.245 before CONNECT? If so, what
if third party pause and redirection is initiated before
CONNECT?
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François AUDET, Nortel Networks